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What NASA learned by pointing an asteroid probe at Mars
Futura, le média qui explore le monde • • science
Key Points:
- The Psyche spacecraft's Mars flyby provided a gravity-assisted speed boost and allowed engineers to test its scientific instruments on a real planetary target, with all instruments performing successfully.
- Key instruments tested included the gamma-ray and neutron spectrometer, which detected escaping neutrons; the magnetometer, which recorded magnetic field changes at Mars’s bow shock; and the multispectral imager, which captured detailed images of Mars’s south polar cap and Huygens crater.
- Although major new discoveries about Mars were unlikely due to extensive prior study, the flyby offered valuable complementary data from a unique vantage point to help contextualize planetary core dynamics.
- The mission supports ongoing research into how Mars lost its global magnetic field about four billion years ago, with recent studies suggesting changes in the planet’s core composition disrupted its magnetic dynamo.
- Psyche’s next major objective is a 2029 orbit insertion around asteroid 16 Psyche, a large metallic body believed to be the exposed core of a protoplanet, where the spacecraft will analyze its structure and composition.
